21518860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97813}}^1$

素因数の和:97833

約数の個数: 24

約数和(自身を含む): 49298256

約数和(自身を除く): 27779396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97813, 195626, 391252, 489065, 978130, 1075943, 1956260, 2151886, 4303772, 5379715, 10759430, 21518860]

約数ペア:

[(1, 21518860), (2, 10759430), (4, 5379715), (5, 4303772), (10, 2151886), (11, 1956260), (20, 1075943), (22, 978130), (44, 489065), (55, 391252), (110, 195626), (220, 97813)]